These screws and nuts are made of high-quality 304 stainless steel, providing strength and good corrosion resistance in various environments. The button head design is ideal for use in confined spaces as a fixing component, suitable for industrial and construction applications. This set includes multiple lengths commonly used in home and office appliances, machinery, furniture, repairs, and DIY projects. Features: - Made of 304 stainless steel, offering strength and corrosion resistance - Suitable for use in tight spaces and general fastening applications - Includes various lengths of button head screws for multiple uses - Set contains 180 screws and 50 nuts for general-purpose needs - Widely used in appliances, machinery, equipment, and industrial applications Specifications: - Material: 304 Stainless Steel - Grade: A2-70 - Color: Silver - Standard: Metric - Screw Type: Hex Socket Button Head - Thread Size: M3 - Sizes & Quantities: - M3 x 4mm: 30 pcs - M3 x 6mm: 30 pcs - M3 x 8mm: 30 pcs - M3 x 12mm: 30 pcs - M3 x 16mm: 30 pcs - M3 x 20mm: 30 pcs - M3 Nuts: 50 pcs - Box Size: 13.2 x 7.2 x 2.3 cm (5.19 x 2.83 x 0.9 inches) Package Includes: - 180 pcs Screws - 50 pcs Nuts